Well-drilling machine.



N0. 831,305. PATENTED SEPT. 18, 1906.

L. D. SHRYOGK. I

WELL DRILLING MACHINE. APPLICATION FILED JAN. 30. 1906.

2 SHEETS-SHEET 1.

No. 831,305. PATENTED SEPT. 18, 1906.

L. 1). SHRYOOK.

WELL DRILLING MACHINE.

' APPLIOATION FILED JAN,30, 1906.

2 SHEETS-SHEET 2.

' LEONARD D. SHRYOCK, OF MARIETTA, OHIO.

WELL-DRILLING MACHINE.

Specification of Letters Patent.

Patented Sept. 18, 1906.

Application filed January 30, 1906. Serial No. 298,576.

To all whom it may concern.-

Be it known that I, LEONARD D. SHRYOGK, a citizen of the United States,residing at Marietta, in the county of Washington and State of Ohio,have invented certain new an useful Improvements in Well-DrillingMachines, of which the following is a specification, reference being hadtherein to the ac companying drawings.

In Letters Patent No. 781,234, granted to me January 31, 1905, I haveshown and described power-transmitting mechanism connecting thecrank-shaft with the drillingcable for imparting motion to the latterwhen spudding, and the specific means disclosed therein consists of aspudding-line connected at one end to the crank and at its opposite endto the drilling-cable, with a sheave arranged to properly direct themovement of the spudding-line.

In the present invention the sheave of my former patent is displaced bya lever which operatively connects the actuating crank and spudding-linein such manner that the pull upon the crank is in substantially theplane of movement thereof, while the pull on the spudding line is in aplane oblique thereto.

In the accompanying drawings, Figure 1 is a side elevation of adrilling-machine frame, showing the power-transmitting lever in inclinedposition; and Fig. 2 is a rear end view of the same. Figs. 3 and 4 aresimilar views showing the lever arranged horizontally. Fig. 5illustrates the lever mounted upon the front portion of the frame.

I show only such portions of the machine as are necessary forillustrating the proper position of the particular mechanism to whichthe invention relates, as the completed machine may be fully'understoodby referring to the above-mentioned patent.

Referring to the drawings, 2 designates the frame of thedrilling-machine; 3, the bandwheel shaft, and 4 the crank.

In the construction shown in Figs. 1 and 2 a lever 5 is fulcrumedbetween its ends in inclined position on support 6, the outer endthereof extending into the plane of movement of crank 4, to which it isconnected by pitman 6, the pitman and lever being united by aball-and-socket joint 7. The jerk-line 8 extends from the inner end oflever 5 to the vertically-oscillating arm 9, carrying sheave 10,aroundwhich the drilling-cable 11 passes from spool 12.

In the arrangement shown in Figs. 3 and 4 the construction is the same,excepting that the power-transmitting lever 5 is mounted to oscillate ina horizontal plane.

In Fig. 5 a lever 5, similar to lever 5 of Figs. 1 and 2, is mounted onthe front portion of frame 2, being connected to crank 4 by pitman 6. Inthis arrangement the jerkline 8 is much shorter than in theconstructions above described.

In all of the constructions the outer end of the power-transmittinglever oscillates in or through a line intersecting the plane of movementof the crank, so that the pull upon the lever is in substantially theplane of movement thereof, thus relieving the crank and its shaft oftwisting or distorting strains. The change from a rotary to areciprocating motion is accomplished without loss of power, there beingno friction to diminish the same or unduly wear the parts. The power isdirectly applied for securing the rapid reciprocations necessary for thespudding operation.

I claim v 1. In a spudding attachment for welldrilling machines, thecombination of a shaft having a crank, a lever intersecting the plane ofmovement of the crank, the lever-fulcrum being at one side of said planeof movement, a connection between the lever and crank, and adrilling-cable operatively connected to the lever. I

2. In a spudding attachment for welldrilling machines, the combinationof a shaft having a crank, a lever intersecting the plane of movement ofthe crank, a connection between the lever and crank, a drilling-cable,and a spudding-line extending from the lever to the cable. 1

3. In a spudding attachment for welldrilling machines, the combinationof a machine-frame, a shaft journaled in the frame, a crank on theshaft, the crank being located outside the frame, a drilling-cableoperative Within the frame, a lever fulcrumed to the frame with one endintersecting the plane of movement of the crank, a connection betweenthe projecting end of the lever and the crank, and a spudding-nneconnecting the lever with the drilling-cable.

4. In a spudding attachment for welldrilling machines, the combinationof a machine-frame, a shaft journaled therein having a crank, a leverfulcrumed between its ends on an inclined axis with its lowermost endintersecting the plane of movement of the crank, a drilling-cableoperative in the machine-frame, and a spudding-line connecting thelupperend of the lever with the drillingcab e.

In testimony whereof I aflix my signature in presence of two witnesses.

LEONARD D. SHRYOOK. Witnesses:

W. E. SYKEs, PEARL MASON.

